Mailmark
The facts below are what the maker publishes about Mailmark, checked and dated. Our editors have not written about it yet.
Plans and prices
From Mailmark's own pricing page, checked 4 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Starter | $10 a month | 1,000 emails / month · 500 contacts · 1 custom domain · 3 mailboxes · Full email UI · User campaigns · REST API & npm SDK · Basic support · $10/per month |
| Pro | $50 a month | 25,000 emails / month · 10,000 contacts · 5 custom domains · Unlimited mailboxes · Full email UI · User campaigns · REST API & npm SDK · Priority support · $50/per month |
| Business | $100 a month | 100,000 emails / month · 50,000 contacts · Unlimited domains · Unlimited mailboxes · Full email UI · User campaigns · REST API & npm SDK · Dedicated support · $100/per month |
The facts
Each one read from Mailmark's own pages, with the date it was checked.
What it does
- API and SDK
- Mailmark provides a REST API and a typed JavaScript and TypeScript npm package for transactional and campaign email, scheduling, sequences, and delivery stats.checked 4 Oct 2026
- Campaigns
- Campaigns support mail merge, personalized fields, automated follow-ups, and tracking for opens, clicks, replies, and bounces.checked 4 Oct 2026
- Deliverability
- It monitors SPF, DKIM, DMARC, and blacklist status and offers inbox placement testing against Gmail, Outlook, and Yahoo seed inboxes.checked 4 Oct 2026
- Delivery methods
- apichecked 20 Sep 2026
- Domains
- It offers guided DNS setup and auto-verification for MX, SPF, DKIM, and DMARC records.checked 4 Oct 2026
- Inbox
- The email interface includes Inbox, Sent, Outbox, Drafts, and Trash, with rich-text composition, attachments, and full-text search.checked 4 Oct 2026
- Infrastructure
- Mailmark says it runs on AWS across multiple availability zones and uses AWS SES for delivery and S3 for storage.checked 4 Oct 2026
- Monthly send limit
- 1000checked 20 Sep 2026
- Open source and self-hosting
- Mailmark describes itself as an open-source project and says it is self-hostable; it began as a solo project in 2024.checked 4 Oct 2026
- Paid from
- 10checked 20 Sep 2026
- Product
- Mailmark combines custom-domain email hosting, inbox management, campaigns, an API, and deliverability tools for developers managing multiple products.checked 4 Oct 2026
- Security
- Mailmark says data is encrypted in transit with TLS 1.3 and at rest with AES-256, including email content, attachments, account data, and backups.checked 4 Oct 2026
- Support
- The documentation page says its support team typically responds within 2 hours on business days.checked 4 Oct 2026
- Template options
- codechecked 20 Sep 2026
- Unsubscribes
- Mailmark supports one-click unsubscribe for Gmail and Yahoo and automatically skips opted-out users across products.checked 4 Oct 2026
- Warm-up
- Mailmark says it ramps up sending volume for each new product domain over 28 days.checked 4 Oct 2026
The company
- Founded
- 2024checked 28 Sep 2026
- Team features
- Teams can invite collaborators, assign mailboxes by product, and manage permissions from one dashboard.checked 4 Oct 2026
Money
- Free plan
- Yeschecked 20 Sep 2026
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